Steel-spring cushion-tire device



Much 16,1926. f 1,577,013

D. DoNNl-:LLY

STEEL SPRING CUSHION TIRE' DEVICE Filed Oct. 1, 1924 Patented Nitti. 16, 1926.

" UNriEn STATES PATENT artica.;

DENNIS DONNELLY, OF GILIVIORE Cv'lY, IOVA, ASSGNGR OF ONE-FOURTH TO JOHN S. MCBRIDE AND ONE-FOURTH TO EDVJARD A. LAW, BOTH OF FORT DODGE, VIOW'A.

i STEL-SPRING' ,CUSHON-TIRE DEVEE.

n Application filed ctobei 1, 1924. Serial No.' 741,042.

Tv alla() hom t vmay concern BeV it known'that I, DENNis DoNNnLLY. a citizen of the United States, residing-at Gilmore City, iii the county of Pocahontas and State of Iowa, havey invented a certain new andv useful Steel-Spring Cushion-Tire Device, of which the followingis a specification. Y c

The object of my invention is to provide asteel spring cushion tire of simple, durable andcomparatively inexpensive construction.

More particularly, my invention relates to awheel'for supporting a load, which wheel is formedwith afioating central member or inner rim andan outer member, which is positioned to ,slide within said inner member with leaf springs arranged therebetween.

VStill a further object is to provide an inner and outer rim slidably mounted, Vone within the other and so ararnged that a channel shaped chamber. is formed between the'rims, in which channel shaped chamber are a number of leaf`springs,vwhich permit movement of the rims relative to eachother means for the wheel itself.- Y

Still a further object is to arrange the springs in such position as will prevent their fully set forth, pointed out in my claims,

and illustrated in the accompanying drawings, inrwhich:

kFigure 1 is a top, plan view of a wheel embodying my invention.

Figure 2 is a front elevational view of the.

15 saine, parts being broken away and shown in section to better illustrate ythe construction thereof, and the inner rimpbeing shown in position it will assume when supporting a,load. 'Y

Figure 3 is a central, vertical, sectional Vviewtaken on line'S-S of Figure 2.

In the embodimentl of my invention as, shown iii the aceompanyingk drawings, I

and at the same time serve as a cushioning have `used the reference numeral l10 to indi-v l cate an ordinary wooden or steel. felly of the wheel 11, which includesthe ordinary spokes 12.

The wheel 11 may have fixed to it a brake vdrum 13 ofthe ordinary construction.

My improved' steel spring cushion tire includes an inner rim 14, which is L shaped in cross section.

'A removable wall or flange 15 cooperates.

with theinner rim`14which flange corresponds to the outturned flange 16 of the rim`14, l f I f The flanges 15V and 16 areidentical so far as shape is concerned except that the flange 15 is removable for a purpose hereafter to be 'more fully explained. 7 i

AThe riin 14 is secured to the felly 10 of the wheel 11 in the ordinary manner- An outer rim 17 is formedwith a pair of inwardly extending flanges 18 and 19, which are positioned against Vthe innersurfaoes of the flanges or walls 15 and 16 respectively.y

. The rim 17, withl its flanges 18 and. 19 is positioned within the flanges 15 and 16 of the rim 14 and .is capableof sliding'n'iovenient relative thereto. f l

Secured to the rim 14 on its outer surface are a number of bearings! 20, which are equally spaced apart and'which may be riv- 'eted or otherwise fastened to the rim 14 itself.

The bearings 20 are formd with outwardly extending extensions 21 which are formed with a pair of openings 22, in which are received rivets or bolts23.

Links 24 are fastened tothe rivets 23 onf each side of thel extensions 21 ofthe bear? ings 2O.v

The bearings The locking bolts 26 extend throughthe flange 16 of thev rim 14 and also through 240 :are lalso formed-'with openings.25,-which receive locking bolts 26.

the flange 15, which is demountable relative f to the rim 1 v The flange 15 rests against the bearing members V2O and visheld together therewith by the bolts 26.

' l/Vhen it is desired to remove the flange l5 for gaining access to the bearing members 2(1), all that is necessary is to remove the nuts fromr the bolts 26.

Fixed to the inner surface of the outer rim Il 'il Q ige'raois i7 are a number oil leaf springs 27, which are fixed at a point niidivay between the ends to the rini 17 by rivets or the like 2S.

The springs 2T are connected at their outer ends to the links Qdi by ineans oitl a pivotal connection 29.

The hearing inenibcre 20 are so positioned that they will be spaced adjacent tivo opposite ends oit tivo adjacent springs 95T, as clearly shown in Figure Q el the drawings. The rin'i li is provided with a pair ol beads r ribs SO, which receive therebetween a resilient `band or tread 3l.

Frein the construction olf the parte just described, it will he seen that when weight is applied upon the wheel ll, it will cause the springs positioned on the lower hall" of the rini 17 to he compressed while the springs on the upper halt will he expanded.

It t ie wheel continues to rotate upon the tread 3l, the contraction and expansion ol" the springs will take place.

'lherini 1T as Weil as the tread 3l are connected to the rini let through the springs 27, and the flanges lo and lo on the riin li prevent any side *ard niovcnient oit the rim `1i'.

The flanges l5 and 1G and i8 and 1) are so arranged that the liinit olI nioven'ient ol one riin relative to the other will not space the flanges i5 and lo Atroni the llanges 1S and 19 sufficiently to get theni in position where they will not slide and be received Within the other flanges.

The flanges j-and 16 and the lianges 1S and 19 :forni a coni `iartinent or chainher il, in which may be p accd lubricating grease :t'or properly keeping the parts lubricated lor aerinitting thein to operate freely.

ie arrangement ot the leat springs together with the rubber tread 31 willilorin a cushioning eilect for the load carrieifl by the wheels giving practically the saine resuit as though the tire was a pneumatic one.

Sonie changes may be inade in the construction and arrangement ct the various )arts oi my inv-itiou, Without departing troni the real spirit and purpose ot my invention1 and it is my intention to cover by my claims, any modified furnis of structure or use of mechanical eqn' relents, which may be reasonably included within their scope.

l elaiin as niy invention:

l. ii steel spring cushion tire device coinpriein inner and outer riins channel shaped in c: ss section, slidahly inounted one within the other so that an annular chamber is l'ernicch itat lent rings interposed between said :inner and outer rinis and received in the chamber, said springs being rigidly lined ie one ot said riins, hearings secured to the other oil' said rinis, said springs being piveted by nicans olE linlis to said bearings, and the plate, :termine one side ot said other of said'riins being uelachably secured to. said teu r1 ngs.

il. Lt steel spring cushion tire device co1npricing inner and outer rinis channel shaped in cross section slidahiy mounted one Within the other so that au annular chamber is ilfornied, llat leal springs interposed between said inner and outer rinus and received in the chamber, said springs being fixed at their centers to one ot said riins, hearings li` d to said other rini and spaced 'apart so that the ends el tiro adjacent leaf springs are in close jufoziiinity oit the bearing there between, said springs being pivotally connected to said bearing` one wall of said other ihn being detachahly secured to said hearings for permitting assembly or disassembly ol the parts relative to each other.

l. iii steel spring cusliion tire device coinprising inner and outer riins, channel sha )ed in cross section, slidably mounted one Wit 1in the other so that an annular chamber is formed, flat leai springs interposed between said inner and outer rinis. and received in the chain `ier, said springs being lined at their centers to said outer riin, bearings fixed yto said inner rini and spaced apart so that the ends ol tivo adjacent leal springs are in close proximity olf the bearing therebetween, linhs pivot-ally connected to the ends of said springs and connected to said bearings whereby the outer rini inay nieve relative to the inner riin so that their centers. are different, said springs sei-ving to hold the riins together, one wall ol: said inner, channel shaped rini being detachably secured to said bearings and a resilient tread on said outer rini as and for the purposes stated.

lies liloines, loira, September 17, 1921i.

DENNIS DONNELLY. 

